from rest_framework import serializers
from course.models import CourseDirectionModel,CourseCategoryModel,CourseModel,TeacherModel,CourseChapterModel
class CourseDirectionModelSerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseDirectionModel
        fields = ['id','name']
class CourseCategoryModelSerializer(serializers.ModelSerializer):
    class Meta:
        model=CourseCategoryModel
        fields=['id','name']
class CouserSerializer(serializers.ModelSerializer):
    class Meta:
        model = CourseModel
        fields = "__all__"
class TeacherModelSerializer(serializers.ModelSerializer):
    class Meta():
        model = TeacherModel
        fields = ['id','name','get_role_display','title','signature','avatar','brief']
class CourseRetrieveSerializer(serializers.ModelSerializer):
    direction_name = serializers.CharField(source='direction.name',read_only=True)
    category_name = serializers.CharField(source='category.name',read_only=True)
    # category_name = serializers.SerializerMethodField()
    #
    # def get_category_name(self):
    teacher = TeacherModelSerializer()
    class Meta():
        model = CourseModel
        fields = ['name','course_cover','course_video','course_type','get_level_display',
                  'status','description','pub_date','period','attachment_path','attachment_link',
                  'students','lessons','pub_lessons','price','credit','direction_name','category_name','direction','category','teacher','discount']
class CourseChapterSerializer(serializers.ModelSerializer):
    class Meta():
        model = CourseChapterModel
        fields = ['id','orders','name','summary','pub_date','course','get_lesson_list']
